A semitone bigger than major or perfect is augmented; a semitone smaller than minor or perfect is diminished. They appear once the lower note is not the tonic.
One semitone beyond
- A semitone bigger than major or perfect: augmented.
- A semitone smaller than minor or perfect: diminished.
In C major, F up to B is an augmented 4th, and B up to F a diminished 5th.
Quick check
A perfect 5th made a semitone smaller is:
The rest of this lesson and its 5 practice questions are in Plus.
Screen 1 of 4, free to read.
- 5 exam-style questions, marked as you go, each with a worked solution
- Anything you get wrong is saved to your flashcards